On 12/8/2011 3:37 PM, Boris Mohar wrote:

Took apart a Volvo 850 fuel pump relay. Cracks everywhere.

http://www.viatrack.ca/Misc/FP%20Relay/


Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

void _-void-_ in the obvious place


It does look pretty bad. However, the cracks may not go very far into
the solder. You would have to carefully cut one of the connections apart
across a break and see haw far it does go.

When was the part manufactured. RoHS was not required until July 1996.
There have been many different formulations of lead-free solder. Most
have problems of one type or another. This could be one of the solders
that was discontinued for just the reason you see.

Paul